<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>诛仙2</title>
        <style>
            input[type=text]{
                width: 130px;
                box-sizing: border-box;
                border: 2px solid #ccc;
                border-radius: 4px;
                font-size: 16px;
                background-color: white;
                background-image: url(/imgs/250.png);
                background-position: 10px 10px;
                background-repeat: no-repeat;
                padding: 12px 20px 12px 40px;
                -webkit-transition:width 0.4s ease-in-out;
                transition: width 0.4s ease-in-out;
            }
            input[type=text]:focus{
                width: 100%;
            }
        </style>
    </head>
    <body>
        <p>搜索输入框带动画:</p>
        <form action="/">
            <input type="text" name="search" placeholder="搜索...">
        </form>
    </body>
</html>
